钢铁钒钛

2023 China titanium industry development report

An Zhongsheng, Chen Yan, Zhao Wei, Huai Jin

2024, 45(3): 1-8. doi: 10.7513/j.issn.1004-7638.2024.03.001

Abstract(2384) HTML (274) PDF(464)

Abstract:
Based on the data of production capacity, output, application and import and export of titanium products such as titanium concentrate, titanium sponge, titanium ingot and titanium material in China in 2023, the overall situation of China’s titanium industry was analyzed, and the corresponding sugges...

Recovery and regeneration of waste electrolyte from all-vanadium redox flow battery

Peng Haiquan, Xu Jiabin, You Runchen, Zhao Lina, Hu Xianlong

2024, 45(3): 9-15. doi: 10.7513/j.issn.1004-7638.2024.03.002

Abstract(385) HTML (81) PDF(53)

Abstract:
Vanadium flow battery is an electrochemical energy storage device. As energy is stored in the electrolyte, power and capacity are independent of each other, which has outstanding advantages in the field of large-scale energy storage. However, the recovery and treatment of the used electrolyte of the...

Study on leaching behavior of vanadium in acid leaching process of calcium and manganese vanadate system

Li Feifei, Wen Jing, Jiang Tao, Li Changqing, Xiao Hao

2024, 45(3): 16-24. doi: 10.7513/j.issn.1004-7638.2024.03.003

Abstract(169) HTML (72) PDF(18)

Abstract:
Calcium vanadate and manganese vanadate are important roasting products in the calcification roasting process of vanadium slag, and their dissolution and leaching behavior in sulfuric acid has an important effect on the vanadium yield in the vanadium extraction process. In this paper, the effects of...

Optimization of VAR melting process of TB9 titanium alloy based on numerical simulation

Luo Kun, Geng Naitao, You Yanjun, Peng Li, Wang Ying, Dong Entao

2024, 45(3): 25-32. doi: 10.7513/j.issn.1004-7638.2024.03.004

Abstract(258) HTML (48) PDF(29)

Abstract:
Metallurgical defects such as segregation and inclusion will occur when vacuum arc remelting (VAR) is used to melt TB9 titanium alloy. MeltFlow-VAR simulation software was used to simulate the primary melting process of TB9 titanium alloy VAR, and the influence of melting current and arc stabilizati...

Analysis of factors affecting the gloss of titanium dioxide in coatings

Zou Yong, Li Gang, Li Li, Ke Lianghui, Chen Xinhong

2024, 45(3): 33-38. doi: 10.7513/j.issn.1004-7638.2024.03.005

Abstract(211) HTML (51) PDF(11)

Abstract:
Aiming at the differences in the application performance of titanium dioxide at home and abroad, the morphology of different titanium dioxide products including GT1, GT2 and MT were analyzed by SEM, TEM, EDS, XPS and FTIR. The influencing factors of the glossiness of titanium dioxide in coatings wer...

Comparative study of dispersion performance of the zinc and aluminum salt treated rutile titanium dioxides

Liu Chan, Yin Hongyao, Yang Fang, Lu Ruifang

2024, 45(3): 39-45. doi: 10.7513/j.issn.1004-7638.2024.03.006

Abstract(168) HTML (36) PDF(7)

Abstract:
In this paper, the effects of TiO₂ concentration, pH of the dispersion system and surface adsorbed chemical ingredients on the zeta potential of the zinc and aluminum salt treated rutile titanium dioxides produced by the manufacturer were systematically studied. The differences of the dispersion sta...

Optimization of the investment casting process and defect control for variable cross−section components of TC4 alloy

He Tongzheng, Chen Yuyong, Wu Jingxi, Luo Guojun, Shen Xuanjin, Tang Liying

2024, 45(3): 46-54. doi: 10.7513/j.issn.1004-7638.2024.03.007

Abstract(237) HTML (70) PDF(22)

Abstract:
In this study, the centrifugal investment casting process was optimized using ProCAST software based on an orthogonal experiment for TC4 alloy variable cross−section components. Simultaneously, the mold filling and solidification behaviors of the castings were investigated in detail, and the quality...

Effect of post heat treatment on the microstructure and properties of as-annealed TC4 ELI alloy

Yin Yanchao, Sun Zhijie, Xue Da, Suo Yongyong, Liu Haibin

2024, 45(3): 55-64. doi: 10.7513/j.issn.1004-7638.2024.03.008

Abstract(242) HTML (85) PDF(18)

Abstract:
The effects of post heat treatment on the microstructure and mechanical properties of annealed TC4 ELI alloy investigated by optical microscopy (OM), transmission electron microscopy (TEM), scanning electron microscopy (SEM), tensile and Charpy impact test at room temperature. The results show that ...

Effect of SDBS addition on properties of bismuth vanadate yellow pigment powder

Yin Xianglu, Zeng Zehua, Zhang Dongbin, Dai Yu, Yuan Xinran, Liu Tianhao, Yang Yadong, Yong Lingling

2024, 45(3): 65-70, 85. doi: 10.7513/j.issn.1004-7638.2024.03.009

Abstract(133) HTML (35) PDF(11)

Abstract:
In this paper, sodium dodecylbenzene sulfonate (SDBS) was used as structure directing agent to prepare bismuth vanadate pigment nanopowder by liquid phase method.The influence of SDBS on the morphology, phase, and chromaticity value of bismuth vanadate was investigated.The results show that SDBS can...

Carbon coating, UV irradiation modification of lithium titanate and their electrochemical properties

Li Yunfeng, Wu Chuanbao, Wang Yunwei, Ran Siyu, Zheng Yuqian

2024, 45(3): 71-78. doi: 10.7513/j.issn.1004-7638.2024.03.010

Abstract(119) HTML (36) PDF(7)

Abstract:
Lithium titanate (Li₄Ti₅O₁₂, abbreviated as LTO) has become an important anode material for lithium-ion batteries due to its structural "zero-strain" property. However, the low electronic conductivity of lithium titanate limits its high-rate performance. In this paper, a light-assisted sol-gel metho...

Study on preparation and photocatalytic performance of mint carbon dots/TiO₂ composite photocatalyst

Zhang Ying, Ren Wang, Zheng Xingwen, Zhou Huimian, Qu Xiang, Li Minjiao

2024, 45(3): 79-85. doi: 10.7513/j.issn.1004-7638.2024.03.011

Abstract(249) HTML (79) PDF(11)

Abstract:
In this study, mint powder was employed as biological carbon source to prepare mint carbon dots (mint-CDs)/TiO₂ composite photocatalyst by a one-step hydrothermal method. The structure, morphology, specific surface area and photogenerated charges separation characteristics were carefully investigate...

Study on microstructure and wear properties of TiAl alloy deposited by laser melting

Wang Haijiang, Liu Zhanqi, Liang Jianhui, Yin Guili, Zhu Xiaoou

2024, 45(3): 86-91. doi: 10.7513/j.issn.1004-7638.2024.03.012

Abstract(114) HTML (28) PDF(5)

Abstract:
One-layer, three-layer and five-layer Ti-48Al-2Cr-2Nb alloy samples were prepared on TC4 substrate by coaxial laser powder-feeding deposition manufacturing process. The microstructure, crack morphology, wear surface morphology and phase composition of the deposited layer were analyzed by optical mic...

Safety risk and prospect analysis of titanium gypsum on soil utilization

Yun Yi, Wang Gang, Su Haifeng

2024, 45(3): 92-100. doi: 10.7513/j.issn.1004-7638.2024.03.013

Abstract(303) HTML (112) PDF(21)

Abstract:
Up to now, the resource utilization rate of titanium gypsum is less than 10%, and there is no application field that can be consumed on a large scale, and soilization may be an important direction. In this paper, titanium gypsum was proposed as a soil resource, and the safety problems faced by it as...

Distribution behavior of chromium and sulfur elements during co-treatment of vanadium extraction tailings and red mud

Wang Chunhui, Yu Jian, Feng Xiaoming, Zhang Yanling, Zhang Shuai

2024, 45(3): 101-106. doi: 10.7513/j.issn.1004-7638.2024.03.014

Abstract(129) HTML (27) PDF(9)

Abstract:
The process of blast furnace iron-oxygen top blowing converter blowing vanadium extraction-vanadium slag followed by sodium roasting-water leaching and vanadium extraction will form vanadium tailings containing 30%～40% Cr₂O₃, forming an annual accumulation of millions of tons of solid waste. In this...

Optimization of reduction leaching conditions for pyrite cinder using titanium dioxide waste acid by response surface methodology

Wang Qinghong, Tian Congxue, Wu Xiukun

2024, 45(3): 107-113. doi: 10.7513/j.issn.1004-7638.2024.03.015

Abstract(102) HTML (27) PDF(7)

Abstract:
The reduction leaching conditions for pyrite cinder leaching by titanium dioxide waste acid were investigated and optimized, using the response surface methodology designed by Box-Behnken method, and the iron powder dosage, reduction time, and leaching temperature were selected as the three variable...

Enhanced dispersion-magnetic separation tests for micro-fine titanomagnetite in Panxi area

Liu Caipeng, Wang Weiqing, Sun Jinrui, Xiong Huiming, Liu Liu

2024, 45(3): 114-120. doi: 10.7513/j.issn.1004-7638.2024.03.016

Abstract(113) HTML (26) PDF(9)

Abstract:
Due to the heterogeneous coagulation of fine-grained gangue minerals and titanomagnetite in the mixed rough concentrate of a fine-grained titanomagnetite in Panxi area, the iron extraction and impurity reduction index of conventional low-intensity magnetic separation is poor. The enhanced dispersion...

Simulation of operation inner profile of blast furnace with smelting vanadium-titanium magnetite

Dong Xiaosen, Rao Jiating, Zheng Kui

2024, 45(3): 121-130, 154. doi: 10.7513/j.issn.1004-7638.2024.03.017

Abstract(181) HTML (48) PDF(16)

Abstract:
Based on the design parameters and production conditions of a vanadium-titanium magnetite smelting blast furnace, a numerical model of the vanadium-titanium blast furnace operation inner model was established through a MATLAB calculation software in order to study the slag adhering situation of the ...

Research progress and development direction of steel grade transition

Song Sicheng, Sun Yanhui, Wu Huajie, An Hanghang

2024, 45(3): 131-140. doi: 10.7513/j.issn.1004-7638.2024.03.018

Abstract(130) HTML (61) PDF(9)

Abstract:
The demand for high value-added steel grades is relatively low, and more than one steel grade needs to be produced per casting sequence. Industrial tests of the steel grade transition carried out by domestic enterprises is sorted out in this paper. The application of water model experiment and numer...

High-temperature heat capacity and metallurgical performance of Ca₃TiFe₂O₈

Zeng Junjie, Li Gang, Chen Lian, Xue Yuxiao, Lü Xuewei

2024, 45(3): 141-146. doi: 10.7513/j.issn.1004-7638.2024.03.019

Abstract(110) HTML (29) PDF(5)

Abstract:
The quality of the sintered iron ores is dominated by their bonding phases properties. The calcium ferrite system containing TiO₂ was investigated to promote the efficient utilization of vanadium and titanium magnetite resources in the field of sintering. In this paper, Ca₃TiFe₂O₈ (CFT) was found in...

Effect of Mn content on microstructure and mechanical properties of medium carbon low Si bainitic steel

Yu Jinrui, Yu Xinhong, Zhang Yu, Feng Yisheng, Zhao Ertuan

2024, 45(3): 147-154. doi: 10.7513/j.issn.1004-7638.2024.03.020

Abstract(161) HTML (40) PDF(10)

Abstract:
Four medium-carbon low-Si bainitic steels with different Mn contents(0.76%, 1.29%, 1.53%, 1.85%) were designed and smelted. The effect of manganese content on the microstructure and mechanical properties of the test steel was studied by OM, SEM, XRD and tensile and impact tests. The results show tha...

Formation and evolution of non-metallic inclusions in 20CrMnTiH gear steel during LF-RH-CC process

Wang Zhangyin, Chen Liang, Chen Xiong, Li Pingfan

2024, 45(3): 155-161. doi: 10.7513/j.issn.1004-7638.2024.03.021

Abstract(101) HTML (28) PDF(4)

Abstract:
The formation and evolution of non-metallic inclusions in 20CrMnTiH gear steel during LF-RH-CC process were analyzed by industrial trials, and the transformation trend of non-metallic inclusions during reoxidation and cooling solidification in 20CrMnTiH gear steel was analyzed by thermodynamic calcu...

Research on the influence of various process parameters on the properties of 304 stainless steel prototypes by electron beam free form fabrication

Huang Xingguang, Sun Baofu

2024, 45(3): 162-168. doi: 10.7513/j.issn.1004-7638.2024.03.022

Abstract(127) HTML (28) PDF(5)

Abstract:
304 stainless steel wire with a diameter of 1 mm was used as the material to prepare 304 stainless steel samples using electron beam fusion deposition technology (EBF³) for mechanical properties and microstructure analysis. Nine sets of experimental were designed for single factor experiments, where...

Effect of vanadium microalloying on hydrogen embrittlement susceptibility of medium Mn based hot stamping steel

Liu Hao, Wang Zhen, Zhang Shiqi, Ge Rui, Jia Juan, Liu Jing

2024, 45(3): 169-175. doi: 10.7513/j.issn.1004-7638.2024.03.023

Abstract(134) HTML (27) PDF(11)

Abstract:
The effect of adding 0.12% vanadium on hydrogen embrittlement susceptibility of medium Mn based hot stamping steel was studied by using slow strain rate tensile, hydrogen permeability and hydrogen microprinting experiments, combined with SEM, TEM, and EBSD analysis. The results show that vanadium mi...

Research on preparation of Fe-5%Si porous material and its permeability

Ji Shuai, Yuan Jiale, Liu Zhongjun

2024, 45(3): 176-181, 187. doi: 10.7513/j.issn.1004-7638.2024.03.024

Abstract(121) HTML (33) PDF(7)

Abstract:
Three groups of the same Fe-5%Si mixed powder were sintered at high temperature at 1050 , 1100 ℃ and 1150 ℃, respectively, and held for 2 h. Metallographic (OM) and scanning (SEM) microstructure observation and XRD phase analysis were performed for each sample, and the gas permeability was tested by...

Study on the microstructures and properties of high speed laser welded joints of CP800 high strength steel

Jiang Tong, Wang Dafeng, Zou Shengguang, Zeng Haolin, Ma Bing, Chen Donggao

2024, 45(3): 182-187. doi: 10.7513/j.issn.1004-7638.2024.03.025

Abstract(129) HTML (28) PDF(10)

Abstract:
In order to further improve the laser welding speed and solve the problem of weld depression in the process of high speed welding, carried out high speed laser welding of CP800 high strength steel was carried out at 12 m/min, and the influence of laser incidence angle on weld forming was studied. Un...

Finite element analysis of multi-physics coupling for electromagnetic welding of aluminum/steel dissimilar metals

Wang Yan, Xiong Zhilin, Ning Zhaoyang, Chen Jinlan

2024, 45(3): 188-194. doi: 10.7513/j.issn.1004-7638.2024.03.026

Abstract(131) HTML (31) PDF(8)

Abstract:
The reaction of aluminum/steel dissimilar metals welded joints to form Fe-Al intermetallic compounds deteriorates joint performance and makes welding forming difficult. In this paper, ABAQUS finite element software was used to simulate the electromagnetic-thermal-structure coupling process of dissim...

Effect of Mg on carbides in 21-4N valve steel

Ji Dengping, Zhu Haoran, Liu Beibei, Sun Han, Xu Xiangyu, Fu Jianxun

2024, 45(3): 195-199. doi: 10.7513/j.issn.1004-7638.2024.03.027

Abstract(167) HTML (41) PDF(10)

Abstract:
In order to explore the influence of different magnesium content on primary carbides in 21-4N valve steel, 21-4N valve steel with different magnesium content was smelted in a laboratory high temperature resistance furnace, and the research was carried out by use of Zeiss metallographic microscope, s...

Determination of rare earth elements in vanadium-titanium magnetite by ICP-MS

Liu Shujun, Lei Yong, Zhao Chaohui, Yi Jianchun, Wang Hongbin

2024, 45(3): 200-204. doi: 10.7513/j.issn.1004-7638.2024.03.028

Abstract(173) HTML (72) PDF(15)

Abstract:
Accurate and rapid determination of rare earth elements in vanadium titanium magnetite plays an important role in the efficient utilization of vanadium titanium magnetite. In view of the lack of analysis methods for rare earth elements in vanadium titanium magnetite at home and abroad, 5 representat...

2024 Vol. 45, No. 3